Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Catechins are a type of polyphenolic compound most commonly found in tea leaves (especially green tea) and a variety of other plants. Their use to support or treat colds is primarily rooted in traditional medicine, particularly in East Asian cultures. In traditional Chinese and Japanese practices, green tea and herbal teas containing catechins have long been consumed to promote general health and prevent illness, including the common cold. The rationale for their use is based on the observation that regular tea consumption was correlated with fewer illnesses and that tea was considered to have cleansing and protective properties.

Scientific studies have explored catechins’ antiviral activity in vitro and in animal models, with some evidence showing that catechins—especially epigallocatechin gallate (EGCG)—can inhibit the replication of certain viruses, including influenza and the common cold viruses (rhinoviruses, coronaviruses). However, clinical evidence in humans is limited and inconsistent. Some small studies suggest a potential for reduced incidence or severity of colds in those who regularly consume catechin-rich tea, but these findings are not robust or widely replicated in high-quality, large-scale clinical trials. Thus, while there is a traditional basis and some preliminary scientific interest, catechin use for colds remains primarily a traditional practice with only low-to-moderate scientific support.

More about Catechin (unspecified)
More about Colds (antiviral)

Other ingredients used for Colds (antiviral)

Other health conditions supported by Catechin (unspecified)

Products containing Catechin (unspecified)